Lime kiln bricks are not uniquely associated with mineral processing and are not excluded by the Section 261.4(b)(7) Bevill exemption for mining and mineral processing wastes. To be uniquely associated the wastes must originate primarily from, or be influenced by, contact with ores, or minerals. Wastes analogous to other wastes from non-mining industries are not uniquely associated. Wastes which contact ore are not necessarily excluded (SEE ALSO: 63 FR 28556; May 26, 1998).